Fixed
Status Update
Comments
jb...@google.com <jb...@google.com> #2
Nested scrolling works partially (as per http://b/122818889 ). Let's discuss if we need full support and if so make sure it works.
jb...@google.com <jb...@google.com> #3
Hi!
What is 'partially' exactly?
How do I see it?
Thanks!
What is 'partially' exactly?
How do I see it?
Thanks!
ap...@google.com <ap...@google.com> #4
As of now:
- Nesting scroll views with a scroll direction perpendicular to the ViewPager2's orientation inside ViewPager2 works
- Nesting scroll views with a scroll direction parallel to the ViewPager2's orientation inside ViewPager2 does not work
- Nesting scroll views with a scroll direction perpendicular to the ViewPager2's orientation inside ViewPager2 works
- Nesting scroll views with a scroll direction parallel to the ViewPager2's orientation inside ViewPager2 does not work
jb...@google.com <jb...@google.com> #5
Horizontal ViewPager2 not correctly working into a vertical RecyclerView
Set a setNestedScrollingEnabled to the RecyclerView into the ViewPager2 (across reflection) resolves the problem
Set a setNestedScrollingEnabled to the RecyclerView into the ViewPager2 (across reflection) resolves the problem
na...@google.com <na...@google.com> #6
ageevvalentin@gmail.com, could you provide a sample app? I'd like to learn more about the circumstances that cause the problem; putting a clean ViewPager2 inside a clean RecyclerView seems to work fine, so there must be other factors involved.
na...@google.com <na...@google.com> #7
Added a patch for androidx-master-dev that demos a horizontal ViewPager2 inside a vertical RecyclerView.
Verified that it works correctly on a:
- Nexus 4 emulator with API 17
- Nexus 5X emulator with API 28
- Pixel 2 device with API 29
To reproduce:
- Check out the Android Jetpack source (at commit 256899f482ff85cddfb050f37550be7b5ec927ef) (see steps in [1])
- Apply the patch (`git apply 0001-Add-sample-where-a-horizontal-ViewPager2-is-nested-i.patch`)
- Build and install viewpager2's integration-tests app: `./gradlew viewpager2:integration-tests:testapp:installDebug`
- Run it
Closing the issue for now, but please reopen if you have a minimal reproduction app
[1]https://android.googlesource.com/platform/frameworks/support/+/256899f482ff85cddfb050f37550be7b5ec927ef
Verified that it works correctly on a:
- Nexus 4 emulator with API 17
- Nexus 5X emulator with API 28
- Pixel 2 device with API 29
To reproduce:
- Check out the Android Jetpack source (at commit 256899f482ff85cddfb050f37550be7b5ec927ef) (see steps in [1])
- Apply the patch (`git apply 0001-Add-sample-where-a-horizontal-ViewPager2-is-nested-i.patch`)
- Build and install viewpager2's integration-tests app: `./gradlew viewpager2:integration-tests:testapp:installDebug`
- Run it
Closing the issue for now, but please reopen if you have a minimal reproduction app
[1]
Description
Component used: navigation-compose Version used: 2.7.4
Compose components are generally expected to be able to display themselves on the initial composition, without requiring a second composition.
Right now,
NavHost
doesn't follow this expectation: on the first composition,NavHost
won't display anything, and will only display a destination on the second and subsequent compositions. One additional consequence is that each nestedNavHost
will lose another frame until it resolves to display the current destination.This is sort of related to b/253654317 - the reason it works for
@Preview
now is from special handling whenLocalInspectionMode.current
istrue
. If it worked directly on the first composition pass, it should work in previews directly without needing theLocalInspectionMode.current
special handling.